Quick interlocking duplicate end hose coupling



July 19, 1938. A. J. SCHOLTES ,1

' QUICK INTERLOCKING DUPLICATE END HOSE COUPLING Filed'Juiy 20, 19:57 2 Sheets-Shed 1 fllberZJScholies,

y 1938. A. J. SCHOLTES 2,124,474

QUICK INTERLOCKING DUPLICATE END HOSE COUPLING Filed July 20, 1937 2 Sheets-Sheet 2 Patented July 19, 1938 UNITED STATES PATENT OFFICE QUICK INTERLOCKING DUPLICATE END HOSE COUPLING The present invention relates tohose couplings and has for an object to provide a coupling the opposed members of which are duplicates, or of like and identical construction so that any two 5 ends of hose, without predetermined selection,

may be easily, quickly and securely coupled together in sealed relation.

The purpose of this invention is to do away with the usual male and female coupling members which not only require the definite selection of hose ends having the opposed coupling members, but which also require the separate manufacturing and handling of the different complemental coupling members and the consequent increased cost in the manufacture thereof.

Another object of the invention is to provide a hose coupling having like parts which are coupled together by two different directional movements of the parts relatively to each other and which must take place simultaneously to effect the coupling together of the parts, the movements working against each other upon any tendency of the parts, relatively, toward one of the movements, so that the hose ends are securely held coupled together during the twisting, turning, coiling, pulling and other movements of the hose during handling and use.

A further object of the invention is to provide duplicate hose coupling members which, when coupled together, lie in coaxial alinement with each other and with the attached hose ends; which have contacting faces lying in diagonal planes relatively to the axes of the coupling members, and which have interlocking portions for interengagement upon the positioning of one part in a predetermined axially angular position and in face to face contact with the other part and with its axis at an angle to the axis of said other part, so that the interlocking takes place not only by the turning of the first part on the other part but also by the simultaneous swinging of the first part into axial alinement with the other part.

A further object of the invention is to provide a coupling having all of these characteristics and which is adaptable to all types and constructions of flexible hose for all kinds of fluid, wherein axial pressure, of water or other fillfiuid, maintains the interlock, by pressure sealing, between the parts, and wherein the parts cannot accidently become unlocked or separated.

A still further object of the invention is to provide a hose coupling all parts of which are 55"identicatand which may be economically produced, and easily applied to hose ends without the exercise of any special skill. or tools.

The invention also provides a novel construction of washer for insuring the sealing' of the parts when coupled together and which increases the scaling engagement between the parts under pressure of fluid in the hose,-and novel means for retaining the washer in the coupling member when uncoupled. 7

With the foregoing and other objects in view, the invention will be more fully described-hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like symbols refer to like or corresponding parts throughout'the several views 7 Figure 1 is a side elevation of a hose coupling constructed according to this invention and applied to adjacent hose ends.

Figure 2 is a longitudinal section taken through the same.

Figure 3 is a diagonal section taken on the line 3-3 of Figure 2, looking in the angular direction indicated by the arrows and showing a face view of one of the coupling members.

Figure 4 is a top plan view of the coupling as shown in Figure 1;

Figure 5 is a side elevation of the coupling with the members in alined positions ready for coupling; the arrows showing the directions of advancement of the members together, and of the turning and swinging of one member on the other member to effect the coupling together of the members.

Figure 6 is a diagonal section taken on the line 66 of Figure 2, looking in the axial direction indicated by the arrows and showing the lateral bulging of the nipple of the coupling member to present a circular configuration to the diagonally disposed face of the coupling member,

and a I Figure 7 is a detail edge view of the packing ring or gasket used in each coupling member.

Referring now to the drawings, as the two members or parts of the coupling are identical but one member need be described and the reference characters of the opposed member are primed to better illustrate the relation of the two like members when coupled together."

Each coupling member comprises an annular body part Iii which is constructed diagonally relative to the axis of the body'part Hi. The outer side or face of the body ID has an outstanding annular flange I I which lies in a diagonal plane of the body and is circular with 'ingly hold the washer IS in place.

to the other.

reference to the normal axis of the plane. The body I6 is hollow and opens through its front wall with the inner marginal edge of the flange II projecting inwardly to a slight degree to provide an annular rib or shoulder I2 behind which is seated a compressible washer I3.

Referring now particularly to Figures 2 and 7,

the washer I3 is also of diagonal construction so as to seat into the hollow body II) and against the'rear wall thereof. The washer I3 having an annular exterior groove or shoulder I4 adapted to engage behind the rib I2 so as to yield- The washer I3 is provided at its outer or exposed side with a convex surface I5 which rises from the outer edge portion of the washer I3 to the inner edge portion thereof, and the width or radial thickness of the annular washer is slightly greater than the depth of the hollow body I6, as shown in Figure 2 so that the washer may be deformed and compressed under the pressure of fluid contained in the coupling. The hollow body 9 opens at its inner side to the interior of the coupling and also opens forwardly through the rib I2, the back wall of the body being relatively deep to support the washer I 3 within the hollow body and also affording means for carrying a nipple I6 or any other suitable means for enabling the mounting of the coupling body I upon the extremity of the hose end IT,

The nipple I6 is coaxial with the hollow body I0 so that the nipple I6 is coaxial with the hose end I1 and the hollow coupling member or body is held diagonally against the extremity of the hose end. The hose end is preferably cut to the angle of the coupling body sothat the latter may The nipple I6 may be seat snugly thereagairist. of any suitable construction and is shown as engaging within the end of the hose I1, and a clamping band I8 is suitably secured about the hose and in the region of the nipple I6 for binding the hose thereto as shown.

The flange II provides a face plate for the coupling member and is provided at opposed points with recesses or slots I9. may be located at any suitable point throughout the circular flange II to accomplish the purpose, and in the present instance are shown as being diametrically opposed. The flange or plate II is also provided with overturned tongues or lugs 20 which extend outwardly from the outer marginal edge portion of the flange II and are ofa width tofreely pass'through the slots or recesses I9 in the flange II, and the tongues or lugs are overturned against the outer side of the flange II a, distance equalsubstantiallyto the thickness of the flange II for binding a second flange II against the first flange when the flanges are brought together and are turned relatively one The slots I9 and the tongues 20 thus provide an interlock which may be quickly and easily assembled and separated, the tongues 20 being interlocked by the relative circular onally upon the coupling on the axis of the circular flange II, the latter presents a true circular construction so that when a pair of the members are brought together with their washers I3 therein, the coupling and uncoupling movements are truly circular and there is no eccentric rub bing or wearing of the parts which tends to dis- The slots I9 tort and disrupt the sealing of the washers or gaskets I3. In Figure 3 the lower wall of the nipple I6 is shown as extending backwardly and upwardly, illustrating the diagonal axis of the flange II with reference to the longitudinal axis of the nipple I6 and the hose end II.

In Figure 6 the opposite sides of the nipple I6, adjacent the body I0, are necessarily bulged so as to expand and distort the hose end I! sufficiently to impart a round circular shape to the hose end I! in the diagonal plane of the flange II. As Figure 6 is taken on the axial line of the nipple I6 the annular portion of the nipple I6 appears with a major transverse axis, whereas the receding upper portion of Figure 6 shows from Figure 2 that the transverse and vertical axes are identical so as to provide the circular formation of the hose end and the coupling body If] in a diagonal plane.

In use, two coupling members of the construction of this invention are secured to the respective hose ends I! and IT by the clamping bands I8, or the like, which bind the hose ends upon the nipples I6 and I6. ure 5, the hose ends are about to be coupled together and it will be noted that one of the hose ends I! may be held in a definite position while the other hose end I1 is turned and swung until the flanges II and II are in substantially parallel relation and with the tongues 20 of one flange opposite the recesses or slots I9 in the other flange. When in this position the hose end I'I extends with its axis at a fairly sharp angle with respect to the longitudinal axis of the hose end II. the flange II in the direction shown by the arrow 22, and the tongues 29 pass through the slots I9, and the outer convex faces I of the washers I3 are brought into facecontact with the inner edges of the washers first meeting and subsequently being compressed and deformed in- With reference to Fig- The flange II is now advanced against 6 wardly to provide an effective seal which is shown at 2I in Figure 2. The hose section II with its coupling member is now turned to rotate the flange II against the flange II, Figure 5 showing the direction of rotation by the arrow 23. On account of the diagonal construction of the coupling member, the hose end I'I' must not only be turned as shown by the arrow 23, but at the same time must be swung upon its central axis from a central point where the axis intersects the longitudinal axis of the hose end IT. This swinging movement of the hose end II 'is indicated by the broken line and arrow 24. Thus, as the two flanges II and II are interlocked by a relative rotary movement, the hose ends I! and II are swung into coaxial or longitudinal alinement, and the parts cannot be uncoupled until the hose ends are relatively swung and simultaneously turned in an opposite manner to effect the rotation of the flanges II and II upon each other to free the tongues 20. It will thus be understood that when the coupling is closed as shown in Figures 1, 2 and 4, any axial strain will be resisted by the tongues 26 so that the parts cannot be separated by pushing or pulling of the hose, and any twisting and turning of the hose will not affect the 7 coupling unless there is a positive turning of the coupling members relatively in one direc mal use and handling of the hose the turning and. swinging actions are not simultaneously produced and consequently the coupling cannot be accidently opened.

The internal fluid presure acts radially upon the abutting Washers I3 and I3 so as to increase the sealing pressure of the convex faces I5 against each other proportionately to the fluid pressure, such pressure compresing the washers into the opposed facing pockets of the body portions I I] and I to increase the locking and sealing eifects of the coupling members. The diagonal flanges II on the coupling members provide contacting faces which are oblique to the axes of their respective coupling members, and the interlocking lugs 20 and the receiving slots I9 are so axially angularly disposed on and in the flanges I I as to register for assembling and separation only when the members themselves are relatively swung out of coaxial alinement. As the contacting faces are pressed together and turned for interlocking the lugs 20 with the flanges I I, the members must be swung into coaxial alinement. The lugs 20 are thus held against release except upon the coordinating turning and swinging of the 'members relative to each other back into their initial angular and rotative positions.

The body portions of the coupling members provide ring seats which open through the outer ends of the coupling members and have the overhanging shoulders I 2 for holding the washers I3 in the seats and the washers have their inner marginal edge portions thickened so as to project outwardly from the coupling members and provide an excess of compressible material forming the bulged bead 2| at the inner meeting edges of the washers and the convex faces. I5 which insure the sealing of the coupling memberstogether not only by their interlocking engagement but also by the pressure of fluid in thecoupling.

It is obvious that various changes and modifications maybe made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope of the followingclaims.

What is claimed is:

1. A hose coupling, comprising a pair of like diagonal coupling members, and interlocking means carried by the diagonal coupling members operable for interlocking the coupling members together upon relative turning and swinging of the coupling members, said interlocking means comprising pairs of lugs and pairs of lug receiving slots on each of said coupling members.

2. A hose coupling, comprising a pair of like diagonal coupling members, and interlocking means carried by the diagonal coupling members operable for interlocking the coupling members together upon the relative turning and swinging of the coupling members, said interlocking means comprising pairs of diametrically opposed like lugs on each coupling member, said lugs adapted to abut and form stops when the coupling members are turned and swung into coaxial alinement.

ALBERT J. SCI-IOLTES.. 

